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NTN MEGAOHM Series Insulated Ball Bearings 7MC3-6314L1BC4

NTN MEGAOHM Series Insulated Ball Bearings 7MC3-6314L1BC4

The NTN MEGAOHM Series 7MC3-6314L1BC4 is an insulated ball bearing with a 70mm bore and 150mm outer diameter, designed to handle electrical currents. Its outer ring features a ceramic coating, providing insulation with a breakdown voltage over 3000V.

With a dynamic load rating of 66.0 kN and a static load rating of 44.0 kN, it offers reliable performance under heavy loads. The brass cage ensures smooth operation at speeds up to 10000 r/min.

The C4 radial internal clearance allows for thermal expansion, making it suitable for high-speed applications. Its electrical resistance exceeds 2000 MΩ, preventing current passage.

Ideal for electric motors and generators, this bearing is RoHS compliant and weighs 2.58 kg. The 0.2mm ceramic layer provides durable insulation in demanding environments.

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Product Parameters

  • Model 7MC3-6314L1BC4
  • Product Category NTN MEGAOHM Series Insulated Ball Bearings
  • Insulating Coating Types Outer ring ceramic coated
  • Coating Suffix 7MC3
  • Manufacturers NTN
  • Bore Diameter 70 mm
  • Outside Diameter 150 mm
  • Width 35 mm
  • Net Weight 2.58 kg
  • Basic Dynamic Load Rating 66.0 kN
  • Basic Static Load Rating 44.0 kN
  • Reference Speed 10000 r/min
  • Breakdown Voltage (DC) ＞3000 V
  • Layer Thickness 0.2 mm
  • Electrical Resistance ＞2000 MΩ
  • Cage Material Brass cage
  • Radial Internal Clearance C4
  • ROHS Compliant
  • REACH Compliant
NTN MEGAOHM Series Insulated Ball Bearings 7MC3-6314L1BC4 dimension drawing
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Features

How Is 7MC3-6314L1BC4 Bearing Engineered for Reliability?

7MC3-6314L1BC4 Bearing features an outer ring ceramic coating, providing excellent insulation against electrical currents.
Its breakdown voltage exceeds 3000 V, making it suitable for high-voltage applications.

The brass cage ensures smooth operation and reduces friction, even at high speeds up to 10,000 r/min.
With a basic dynamic load rating of 66.0 kN, it handles heavy loads with ease.

7MC3-6314L1BC4 Bearing’s C4 radial internal clearance allows for thermal expansion in demanding conditions.
Its electrical resistance of over 2000 MΩ prevents current leakage, ensuring long-term reliability.

The ceramic coating thickness of 0.2 mm offers durability without compromising performance.
This design makes 7MC3-6314L1BC4 Bearing a dependable choice for industrial applications.

Application

Industrial Uses of 7MC3-6314L1BC4 Bearing
The 7MC3-6314L1BC4 Bearing is commonly used in electric motors and generators, where its ceramic coating prevents electrical arcing. This makes it ideal for industries relying on high-voltage equipment.

In wind turbines, the 7MC3-6314L1BC4 Bearing handles high rotational speeds while maintaining electrical insulation. Its brass cage ensures durability in demanding environments.

For railway applications, the 7MC3-6314L1BC4 Bearing supports traction motors, offering reliable performance under heavy loads. The C4 clearance allows for thermal expansion during long-distance travel.

In industrial pumps, the 7MC3-6314L1BC4 Bearing’s high breakdown voltage ensures safe operation in wet or corrosive conditions. Its robust design minimises maintenance needs.

The 7MC3-6314L1BC4 Bearing is also found in medical imaging devices, where electrical insulation is critical. Its smooth operation reduces noise and vibration in sensitive equipment.

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